<?php

namespace App\Dao\System;
use App\Model\System\SystemConfig;
use phpDocumentor\Reflection\Types\Collection;
use \Yj\Daos\BaseDao;
use Hyperf\Database\Model\Builder;
use Yj\Daos\BaseDaos;
use Yj\Daos\Verify;

/**
 * @var SystemConfig
 */
class SystemConfigDao extends BaseDaos
{


    public function existsKey($key)
    {
        return $this->where('key',$key)->exists();
    }
}